Cellulosic composition of matter containing anisidine



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Patented Get. a, 1931 'rrroMAsn MURR QJRH amcym a; men, or ROQEESTER, NEW yonmnssrenons I To-nAsrMA1v none i coiurnrm, or nocHnsrEn, new YOB-K,'A co'nrone'rronor 1 jnnwyonx J r r, i V w 'oEnLuLosro'comrosrrronior MATTER conrarnine AmsInrnE Thisinvention relates to compositions of matter in which cellulose:derivativeasuch as cellulose acetate, cellulose nitrate, or cellulose ether, are'combined or mixed witlrother substancespsuch as a compatible plasticizer, and a common solvent for both,--vvith orwithout othergusetul addition agents so that; the rec sultingproductavillhave properties such as Will make the composition highly, advantageousffor use in the plastic and analogous arts, such, for instance,- asfthe manufacture of Wrapping sheets; photographic film, artificialsilk,varnishesfor lacquers, and the like. One object of this" invention isto produce composition vof matter which: maybe made into "permanently transparent, strong and flexible sheets or- -filmsf of desired thinness which arersubstantially Waterproof, areunaffected :by ordinary"photographic fluids and possess thedesired properties ofa support for sensitive photographic :coatings. Another object of-our inventionis t'ogproduce a composition which. 1scapable of easy ;and coni venient manipulation in the plastic, and antains 7 While cellulose acetates, nitrates and others havebeen known'for decades it has also been known that to utilize them in the various plastic arts it is necessary to mix therewith such plasticizing or conditioning agents as camphor, castor o1l, triphenvl phosphate,

' monochlornaphthalene or the like. Certain of these and other addition agents are also added for the purpose ofreducing the inflammability of the product. Plastic inducing agents, such as the higher alcohols and their esters, are sometimes also added. Similarly,

' addition compounds of various kinds have been employed to increase flexibility, transparency, toughness and other properties which will enhance the value of the resulting product. Addition products forthe same or to the art. a v r r -Wehave discovered that valuable, propertles maybe induced in-and/or contributed,

structural formula alogous arts, such aspin the? manufacture of I these sheets, films, artificial silk filaments, v varnishes lac uers and the like and to pro- 1 I q It is compatlble with cellulose derivatives and I Application-filed September 12,1930. Serial 1%.481586.

similar purposes are also added to cellulose acetates, nitrates and ethers to prepare them for use in the other plastic arts, such as in the manufacture of lacquers, varnishes, artificial silk filaments, moulded compoundsand the like. V7l1ilc the plasticizers or other addition agents heretofore discovered have had their utility in the art, the increasing use to which cellulose derivatives have been put and the increasingnumber of desirable properties required ofthe cellulose derivativefor most f purposes has made the discovery of new and economical plasticizers or other addition of considerable importance agents a matter to compositions containing cellulose deriva- "tives, such as cellulose acetate, by adding thereto the plasticizing compound para-anisidine together with a solvent, such as, acetone, .which will dissolve both the cellulose derivaplasticizer has,the-

tive and plasticizer. This HZNO-O on;

particularly compatible with cellulose acetate in the percentages hereinafter given. It: is

not an expensive compoundand not particularly difficult to produce, or obtain upon the open market. Theparticularly useful properties which: it induces in or contributesto a cellulos1c composltlon contain ng it are here- ,inaf -ter enumerated. i i

In orderthat those skilledinthis art may better understand our invention We would state, by Wayof illustration, that for the manufacture of photographic film or other sheetsournew composition of matter may be compounded as follows: lOOparts of acetone solublecellulose acetate i. e. cellulose acetate containing from 38% to 42% acetyl radical,

c approximately, is dissolvedflivith stirring at I atmospheric temperature in 300: to 500 parts, preferably 400 parts, by Weight, of acetone. To this solution may be added from to vpartsbyWeight, of para-anisidine, itbeing ,foun

d preferable to employ approximately 1c 1 have described thepara compound itwill'be fdescribed may be deposited upon any suitable I spinning methodi With theproper coagua stated, the amount of plasticizermay be decreased or increased, depending upon Whether 1 it is desired todecrease or increase, respec tively' the properties which this plasticizerj contributes to the finished product. Theamount of solvent employed may also be de- 7 creased or increased, depending uponwhether .itis desired tohave a more or less freely flow ing composition, respectively. l/Vhile we ob,vious that. it is within" the scope of our in "or meta anisidine. s

vention to similarly employeither the ortho "A composition of matter prepared as above filllli forming surface to form a film or sheet, as is well known to those skilled in the 7 art.

"A so produced has permanently brilliant i transparency and low Qinflammability burning nofmore readily'than ordinary newsprint. Such film is exceedingly jtoughand flexible;

as shown'by the fact'th'at it will. withstand l folds upon amodified SchOpper'fold- ,tesltergtcommonly used; for such purposes) f withoiit}brealiing andlthat even after being subjected for; a considerablenumber of days f t fto' ajirmaintainedlat a" temperature of C. Qthe film'still'niaintainsflexibility (in ,con-' trast to almost v, complete lack of flexibility jwlierefno plasticizers is used) demonstrating .a that the filmjwill withstand ordinary usage "satisfactorily! for manyflyearsl fThe' sum total ofthe above advantageous properties of a product produced from our new composition I is considerably infex'cess of that of products i produce'dwithwhat have previously beenreg'arded as'thelbetter plasticizers.

11 Other similar solvents-(insteadof acetone) tateandour new plasticizer may also occur I ito'those skilled in this art, .t In like manner a this 'pl'asticizer-may; be compounded with other sing-leorganic estersof cellulose, such 'as'cellulose propionate', butyrate and the like,

whichare compatiblc with the cellulose ace- I V day of September,'.1930'.

with whichit maybe found to be compatible,

In such cases the pl'asticiz'er is? usually first put 1nto SOllltlOIllWlllll the cellulose derivative solution and if non-solvent's areadded' for the purpose of cheapening -the composition they areadded only to such an extent as will not precipitate the'derivative from solution.

Also the plasticizeris usually=employed in largeramountspsuch as fromf5 O to 60 parts, in compounding lacquers. Other u'ses'with- :in'the-s'copeof our inventionTWill also sug-- "gest themselves to those skilled in theart and are to be included within the scope of the claimsappended hereto. Y

' What we claim as Ourinvntionyand de- United States,-is; p

' 1. A composition of matter-comprisinga I cellulosederivative andianisidine. r

2. A COIIIPOSItIOD'Of' matter comprising a cellulose derivative and para-anisi'dine,

3,;A comp'osition v of m'atter comprising cellulose acetate andanisidinez a: a

4., A "composition of atter 1 comprising cellulose iacetat eland para-anisidine; l

5. composition of matter 'Jcomprising 100 parts cellulose acetate and from about 10 to GOpartS, by"weight,of pa ra-anisidiiie.

sire to be secured by Letters Pagan of, the

F 6. A 'composition"ofimatter'comprising V '100 parts of celluloseacetate,and'approxi- -mately'" 30fto 50 parts,;by 'weight, ofparaanisidine,

Signed at Rochester} M Yak, this cur THOMAS Runes Avail, 7

V or with mixed" organic and/or inorganic I esters, such as celluloseaceto-stearate, aceto- 'lnialatey-o'r cellulose nitro-acetate, or with r abein'g p oye 1 .Cellulosefnitrate, or with the cellulose ethers,

a"fsuita ble solvent whichwilldissolve both v [the cellulosicderivative andithefrplasticizer V Inasmuch as our a'bove described composi-i' i of matter-gisIquite 'useful in the produc-v I ttion of film'sfa'nd sheets it will be apparent 1tha1i0urnew plasticizer may also'beemployed [with advantage in the other branches of the plastic art. For instancetour, above described v i composition of matter [maybe employed in the 'manufacture'of artificial silk by't'he dry flating lbath'it may also be employed for wet spinning; ,It may -be' clesired to employ a 

